CVE-2026-92399

HIGH 7.3

GPAC WebSocket rmt_ws.c rmt_client_handle_ws_frame heap-based overflow

CVSS Score

7.3

EPSS Score

0.0%

EPSS Percentile

0th

A vulnerability was determined in GPAC 26.07.0. This affects the function rmt_client_handle_ws_frame of the file src/utils/rmt_ws.c of the component WebSocket Handler. Executing a manipulation of the argument payload_size can lead to heap-based buffer overflow. It is possible to launch the attack remotely. The exploit has been publicly disclosed and may be utilized. Upgrading to version abi-16.26 is able to mitigate this issue. This patch is called 37bccbb30cf53a0e1a084cea9a1ce422b3ddfe12. Upgrading the affected component is recommended.

CWE	CWE-122 CWE-119
Vendor	n/a
Product	gpac
Published	Sep 16, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

n/a / GPAC

26.07.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/405551 vuldb.com: https://vuldb.com/vuln/405551/cti vuldb.com: https://vuldb.com/cve/CVE-2026-92399 vuldb.com: https://vuldb.com/submit/940250 github.com: https://github.com/gpac/gpac/issues/3860 github.com: https://github.com/user-attachments/files/31208030/poc_rmt_ws_malicious_frame.py github.com: https://github.com/gpac/gpac/commit/37bccbb30cf53a0e1a084cea9a1ce422b3ddfe12 github.com: https://github.com/gpac/gpac/releases/tag/abi-16.26 github.com: https://github.com/gpac/gpac/

Credits

🔍 JerryGW (VulDB User)